import sqlite3db = r"D:/pyWork/test.db"  #pyWork目錄下test.db數據庫文件drp_tb_sql = "drop table if exists staff"crt_tb_sql = """create table if not exists staff(  id integer primary key autoincrement unique not null,  name varchar(100),  city varchar(100));"""#連接數據庫con = sqlite3.connect(db)cur = con.cursor()#創建表staffcur.execute(drp_tb_sql)cur.execute(crt_tb_sql)#插入記錄insert_sql = "insert into staff (name,city) values (?,?)"  #?為占位符cur.execute(insert_sql,('Tom','New York'))cur.execute(insert_sql,('Frank','Los Angeles'))cur.execute(insert_sql,('Kate','Chicago'))cur.execute(insert_sql,('Thomas','Houston'))cur.execute(insert_sql,('Sam','Philadelphia'))con.commit()#查詢記錄select_sql = "select * from staff"cur.execute(select_sql)#返回一個list，list中的對象類型為tuple（元組）date_set = cur.fetchall()for row in date_set:  print(row)cur.close()con.close()